Scientific Achievement
A transient metastable state with zero polarization was dynamically stabilized in Sn2P2S6 leading to pronounced history-dependent mem-capacitance.
Significance and Impact
Findings provide a path to tunable electronic elements far beyond binary high-density computing devices and neuromorphic circuits based on the dynamic properties of the energy well consisting of three minima that can be stabilized dynamically.
Research Details
Multivariate nanoscale scanning probe microscopy was used to detect polar and capacitive states induced by dynamic electric fields in ferroelectric Sn2P2S6.
Theoretical modeling confirmed that observed phenomena emanate from dynamic stabilization of three polarization states instead of only two states common in ferroelectrics.
S.M. Neumayer, et al,, Advanced Materials, 2211194 (2023).
DOI:10.1002/adma.202211194
Work conducted at the Center for Nanophase Material Sciences.
